Device for preventing obstruction of carbureter feed-pipes.



U. E. DAVIS. DEVICE FOR PREVENTING DESTRUCTION 0P GARBURBTER FEED PIPES. APPLICATION FILED APR.7,1913.

1,125,45, Patented Jan. 19, 1915,

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I THE NORRIS PETERS 60., PHDTD-LITHO. WASHINGmN. D. c.

UNITED STAULES FATENT orrroa v(LIIAIRLIEZS E. DAVIS, OF CHICAGO, ILLINOIS.

,DEVICE FOR rnnvnnrme oes'rnucrioiv or CARBURETER FEED-PIPES.

panying drawings, wherein Figure 1 is a view showing a carburetor feed pipe embodying one form of the invention; Fig. 2is a sectional view of one section of the feed pipe; Fig. 3 is a View similar to Fig. 2 showing a modified construction.

Like numerals refer to like parts throughout the several figures.

In the use of automobiles and other devices where internal combustion engines are used, it often happens that the carbureter feed pipe becomes obstructed thereby interfering with the operation of the engine, and

when this occurs,'-with the devices 110 in use it is a diflicult matter to locate and re move the obstruction.

One of the objects of my invention is to obviate this difiiculty.

Referring now to the drawings, I have shown in Fig. 1 a diagrammatic view illustrating a carburetor feed pipe. This feed pipe extends from the supply tank 1 to the carbureter 2. Located at some convenient point in this pipe is a part 3. The portion 4 of the carburetor feed pipe extends from the tank 1 to the part 3 and the portion 5 of said feed pipe extends from the part 3 to the carburetor 2. This part 3 provides a means for separating dirt, water or any foreign particles that may be in the liquid fuel, and also provides means whereby every section of the pipe may be easily and quickly blown out in the event it becomes obstructed.

As illustrated in Fig. 2, the part 3 consists of a body portion 6 provided with threaded openings 7 and 8 for the sections 4 and 5 of the feed pipe.

Connected with the body portion 6 is a riser or nipple 9 which extends above the face thereof and which is provided with a passage way communicating with the openspecification of Letters Patent.

Patented Jan. 19, 1915.

Application filed Apri17, 1913. Serial No. 759,308.

ing7 and the section 4 of the feed pipe. A second riser or nipple 10-is also connected with the body portion 6 and is provided with a passage way which communicates with the opening8 and the section 5 of the feed pipe. Both risers or nipples 9 and 10 are preferably provided with exterior and interior screw'threads which have the same thread as the outside and inside of the nipple of a pneumatic tire so that any ordinary tire filling pump may be screwed on to either ofthe nipples. The mouth of the inlet nipple 9 is below the level of the mouth of the outlet nipple 10 so as to prevent water and dirt from entering the outlet nipple.

The nipple 10 is provided with a cupshaped removable screen 11 which fits over it and which is held against lateral movement by the raised annulus 12 over which it also fits.

An outside removable cap 13 is connected with the body portion 6 and covers and protects the two nipples, and also acts to complete the connection between them so that the liquid fuel may pass from one to the other. i y

In the use of the device, the liquid-"fuel enters through the nipple 9, then passes through the screen 11- and out through the nipple 10 to the carbureter.

It will be seen that by simply removing the outside cap 13, the nipples are exposed and can be cleaned and the screen can also be removed and cleaned, and any dirt or other foreign matter which has collected in the cap 13 may be easily removed. If, for example, the feed pipe becomes obstructed,

' the cap 13 may be removed by any ordinary pneumatic pump screwed on to either nip ple. The pump may then be operated so as to blow out any obstructed matter therein. The feed pipe is provided with suitable con trolling valves 14. By operating these valves it may be easily ascertained which section of the feed pipe is obstructed, for if the section 4- is not obstructed, the fuel when the valve is opened will be discharged from the nipple 9, whileif it is obstructed, the discharge of the fuel will be stopped or retarded.

In Fig. 3 I have shown a modified construction. In this construction the nipples 9 and 10 are on opposite sides of the body portion 6. In this construction there are two exterior caps 13. one for each nipple, and there is a suitable connection 15 between the two caps so that the fluid may pass from one nipple to the other.

I claim:

1. A device for preventing obstruction of carbureter feed pipes comprising a part connected in the pipe and which divides the pipe into two sections, two nipples connected with said part, one nipple connected with one section of the feed pipe and the other with the other section, and means for connecting an air pump to either of said nipples so as to force air into either section of the pipe to remove the obstruction therefrom.

2. A device for preventing obstruction of carbureter feed pipes comprising a part connected in the pipe and which divides the pipe into two sections, two nipples connected with said part, one nipple connected with one section of the feed pipe and the other with the other section, said nipples provided with inside and outside threads so that an ordinary pneumatic tire pump may be connected therewith.

3. A device for preventing obstruction of carbureter feed pipes comprising a part connected in the pipe and which divides the pipe into two sections, two nipples connected with said part, one nipple connected with one section of the pipe and the other with the other section, means for connecting an air pump to either of said nipples so as to force air into either section of the pipe to remove the obstruction therefrom, and a cupshaped screen surrounding one of said nipples.

4. A device for preventing obstruction of carbureter feed pipes comprising a part connected in the pipe and which divides the pipe into two sections, two nipples connected with said part, one nipple connected with one section of the pipe and the other with the other section, means for connecting an air pump to either of said nipples so as to force air into either section of the pipe to IBmOXB the obstruction therefrom, a cupshaped screen surrounding one of said nipples, and a removable cap surrounding said nipple'and which holds the screen against removal.

5. A device for preventing obstruction of carburetor feed pipes for automobiles comprising a carbureter, a supply tank, a pipe connecting the carbureter and supply tank, a part connected in said pipe at an accessible point, two nipples connected with said part and having passage way extending therethrough, the. passage way of one nipple connecting with one section of the pipe and the passage way of the other nipple connecting with the other section of the pipe, means for connecting an air pump to either of said nipples so as to force air into either section of the pipe to remove the obstruction therefrom. V

In testimony whereof, I affix my signature in the presence of two witnesses this 24th day of March, 1913.

CHARLES E. DAVIS.

Witnesseses DENIE A. WALTERS, Mnvnm I. SUNDFAR.

Copies of this patent ma; be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.? 

